Rice husking machine capable of removing husks and reducing broken rice

Abstract

The invention relates to the technical field of rice processing equipment, and in particular to a rice husking machine for removing hulls and reducing broken rice, comprising a husking device and an impurity removing device, wherein the husking device is located on the top of the impurity removing device and is connected to the impurity removing device, and the husking device comprises an elastic annular wall; and further comprises a husking assembly connected to the elastic annular wall. The invention husks rice by utilizing the interaction between rubber breaking edges on a rubber grinding roller and the elastic annular wall, and utilizes the elastic annular wall to generate a shape so as to change the spacing between the rubber grinding roller and the elastic annular wall, thereby achieving the effect of regulating pressure, and utilizes the effect of a grinding layer on an arc-shaped grinding plate to completely separate the epidermis from the rice, and utilizes the effect of air selection to separate and collect the rice from the husk, so as to solve the problems that the pressure between the rubber rollers of the existing rice husking machine is uncontrollable and the separation and discharge of the rice husk and the rice husk is not complete.

Description

Technical Field

[0001] The invention relates to the technical field of rice processing equipment, and in particular to a rice husker capable of removing husks and reducing broken rice. Background Art

[0002] Rice processing includes the steps of cleaning raw materials, husking, and separation of rice-rough mixture. Husking refers to the process of removing the husk from rice grains, which is generally processed by a rice husker.

[0003] When the existing rice husker is processing rice, two groups of rubber rollers are used to roll the rice, so that the rice and the husk are separated. When the distance between the two groups of rubber rollers is too large, the husk and the rice cannot be completely separated due to insufficient crushing force. However, when the distance between the two groups of rubber rollers is too small, the crushing force generated is too large, so that the rice grains are broken, the broken rice rate is increased, and the quality of the rice husker is affected. Therefore, the pressure between the two rubber rollers in the rice husker should be kept constant and controllable, so that the husking rate is always kept at the best state. At the same time, the traditional rice husker will not completely separate the rice husk and the rice husk after the work is completed, and the inclusion rate of the rice husk in the rice husk collecting cylinder is high, which requires repeated screening, resulting in low production efficiency.

[0004] Therefore, it is necessary to invent a rice husking machine that can remove the husk and reduce broken rice. Summary of the invention

[0005] To this end, the present invention provides a rice husker for removing husks and reducing broken rice. The rice is husked by utilizing the interaction between the rubber breaking edges on a rubber grinding roller and an elastic annular wall, and the elastic annular wall is used to generate a shape so as to change the spacing between the rubber grinding roller and the elastic annular wall, thereby achieving the effect of adjusting the pressure. At the same time, the grinding layer on the arc-shaped grinding plate is used to completely separate the rice epidermis from the rice, and the effect of air separation is used to separate and collect the rice and the husk, so as to solve the problems of uncontrollable pressure between the rubber rollers of the existing rice husker and incomplete separation and discharge of rice bran and rice husk.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a rice husker for removing hulls and reducing broken rice, comprising a hulling device and an impurity removal device, wherein the hulling device is located on the top of the impurity removal device and is connected to the impurity removal device, and the hulling device comprises an elastic annular wall; and further comprising: a hulling assembly connected to the elastic annular wall;

[0007] The shell grinding assembly includes a sealed working case, a rice inlet is opened on the top of the sealed working case, a rice inlet slide is fixedly installed on the top of the sealed working case, the bottom channel of the rice inlet slide is connected to the rice inlet, a first servo motor is fixedly installed on the top of one side of the sealed working case, two inner walls on the top of the sealed working case are rotatably connected to the same rice shaking track, the top of the rice shaking track is connected to the rice inlet, the output shaft of the first servo motor is fixedly connected to the top of the rice shaking track, a second servo motor is fixedly installed on the middle of one side of the sealed working case, The inner walls on both sides of the middle part of the sealed working chassis are rotatably connected with the same rotating shaft, the output shaft of the second servo motor is fixedly connected to the rotating shaft, a rubber grinding roller is fixedly installed on the outer side wall of the rotating shaft, and multiple groups of clamping blocks are fixedly installed on both ends of the outer side wall of the rubber grinding roller, and the multiple groups of clamping blocks located at both ends are arranged in a circular array, and the two groups of clamping blocks located at the same horizontal position are clamped with the same rubber breaking edge strip, a blocking plate is fixedly installed on one side of the sealed working chassis, and a discharge pipe is fixedly installed on the bottom of the sealed working chassis, and the discharge pipe is connected to the inside of the sealed working chassis.

[0008] Preferably, a limiting column is fixedly installed on one side of the elastic annular wall, and the other side of the elastic annular wall is fixedly connected to the inner wall of the sealed working box, the inner wall of the sealed working box is provided with an arc slide, the limiting column is slidably connected to the inner wall of the arc slide and passes through the arc slide, the outer wall of the sealed working box is fixedly installed with a first fixed shaft, the outer wall of the first fixed shaft is rotatably connected to an arc frame, the inner walls on both sides of the bottom of the arc frame are fixedly installed with the same rotating shaft, the outer wall of the sealed working box is rotatably connected to a cylinder, the output end of the cylinder is rotatably connected to the rotating shaft, and a channel is formed between the side of the elastic annular wall away from the limiting column and the blocking plate.

[0009] Preferably, the impurity removal device includes a bottom tank body, the bottom of the sealed working box is fixedly connected to the top of the bottom tank body, a shell outlet groove is provided on one side of the bottom of the bottom tank body, a first blast hole is provided on one side of the top of the bottom tank body, and a second blast hole is provided on the other side of the bottom of the bottom tank body, the first blast hole and the second blast hole are both externally connected to a blower, a feed pipe is rotatably connected to the inner wall at the center of the top of the bottom tank body, the feed pipe is connected to the discharge pipe, a limiting triangle plate is fixedly installed on the inner wall of the top of the bottom tank body, the middle part of the limiting triangle plate is rotatably connected to the bottom of the feed pipe, and the feed pipe passes through the limiting triangle plate. A third servo motor is fixedly installed on the outer wall of the bottom of the bottom tank body, and a rotating rod is rotatably connected to the inner wall of the bottom of the bottom tank body. The output shaft of the third servo motor is fixedly connected to the rotating rod, and a rotating plate is fixedly installed on the top of the rotating rod. A plurality of groups of arc-shaped grinding plates are fixedly installed on the top of the rotating plate, and the plurality of groups of arc-shaped grinding plates are arranged in a circular array, and grinding layers are provided on the outer walls on both sides, and an arc-shaped discharge channel is formed between two adjacent groups of the arc-shaped grinding plates. The tops of the plurality of groups of arc-shaped grinding plates are rotatably connected to the bottom of the limiting triangle plate, and a rice outlet hole is provided on the side of the bottom of the bottom tank body away from the shell outlet groove.

[0010] The beneficial effects of the present invention are:

[0011] 1. The rice is husked by the combined action between the rubber breaking ribs on the rubber grinding roller and the elastic annular wall, and the elastic annular wall is used to generate a shape to change the distance between the rubber grinding roller and the elastic annular wall, thereby achieving the effect of adjusting the pressure. By starting the cylinder, the cylinder output shaft pushes the rotating shaft, thereby causing the arc frame to deflect, thereby driving the limit column to slide in the arc slideway, thereby causing one end of the elastic annular wall fixedly connected to the limit column to expand or contract, thereby achieving the effect of changing the distance between the rubber grinding roller and the inner wall of the elastic annular wall;

[0012] 2. By starting the third servo motor, the output shaft of the third servo motor drives the rotating rod to rotate, so that the rotating plate rotates, thereby causing the rice skin and rice on the rotating plate to rotate. Under the action of centrifugal force, the rice skin, rice with partial skin, and rice are discharged to the outside of the multiple groups of arc-shaped grinding plates through the arc-shaped discharge channel formed between the two adjacent groups of arc-shaped grinding plates. At this time, the rice with partial skin is separated from the rice by the grinding layer on the arc-shaped grinding plate, thereby achieving the effect of completely separating the skin from the rice. At the same time, air is blown into the bottom tank body through the first and second air holes. The wind force blown into the first and second air holes can just suspend the rice skin, but cannot blow the rice. At this time, the rice skin can be discharged to the outside of the device through the shelling groove after air selection, and the rice is discharged to the outside of the device through the rice outlet hole, thereby realizing the separation of the rice skin from the rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1A schematic diagram of the structure of the device provided by the present invention;

[0014] Figure 2 A schematic diagram of the structure of the shell extraction device provided by the present invention;

[0015] Figure 3 A schematic diagram of the internal structure of the sealed working case provided by the present invention;

[0016] Figure 4 A schematic diagram of the back structure of the sealed working chassis provided by the present invention;

[0017] Figure 5 The installation structure diagram of the arc slide provided by the present invention;

[0018] Figure 6 A schematic diagram of the structure of the rubber grinding roller provided by the present invention;

[0019] Figure 7 The adjustment working diagram of the elastic annular wall provided by the present invention;

[0020] Figure 8 A schematic diagram of the structure of the impurity removal device provided by the present invention;

[0021] Fig. 9 A bottom view of the impurity removal device provided by the present invention;

[0022] Fig.10 A connection diagram of the shell stripping device and the impurity removal device provided by the present invention;

[0023] Fig.11 A schematic diagram of the internal structure of the bottom tank provided by the present invention;

[0024] Fig.12 This is a schematic diagram of the installation structure of the arc-shaped grinding plate provided by the present invention.

[0025] In the figure: shelling device 100, shell grinding assembly 110, sealed working chassis 111, rice inlet 112, rice inlet slide 113, first servo motor 114, rice shaking track 115, second servo motor 116, rotating shaft 117, rubber grinding roller 118, clamping block 119, rubber breaking edge strip 120, blocking plate 121, discharge pipe 122, elastic annular wall 130, limiting column 131, arc slide 132, first fixed shaft 133, arc frame 134, rotating shaft 135, cylinder 136, impurity removal device 200, bottom tank body 210, shell outlet groove 211, first blast hole 212, second blast hole 213, feed pipe 214, limiting triangle plate 215, rotating plate 216, arc grinding plate 217, third servo motor 218, rotating rod 219, rice outlet hole 220. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] Refer to the attached Figure 1-12 The present invention provides a rice husking machine for removing hulls and reducing broken rice, comprising a hulling device 100 and an impurity removal device 200, wherein the hulling device 100 is located on the top of the impurity removal device 200 and is connected to the impurity removal device 200, and the hulling device 100 comprises an elastic annular wall 130: and further comprises: a hull grinding assembly 110 connected to the elastic annular wall 130;

[0028] The shell grinding assembly 110 includes a sealed working case 111, a rice inlet 112 is provided at the top of the sealed working case 111, a rice inlet slide 113 is fixedly installed at the top of the sealed working case 111, and the bottom channel of the rice inlet slide 113 is connected to the rice inlet 112, a first servo motor 114 is fixedly installed at the top of one side of the sealed working case 111, and the two inner walls at the top of the sealed working case 111 are rotatably connected to the same rice shaking track 115, and the top of the rice shaking track 115 is connected to the rice inlet 112, and the first servo motor 114 outputs The shaft is fixedly connected to the top of the rice shaking track 115, a second servo motor 116 is fixedly installed in the middle of one side of the sealed working chassis 111, and the inner walls on both sides of the middle of the sealed working chassis 111 are rotatably connected with the same rotating shaft 117, the output shaft of the second servo motor 116 is fixedly connected to the rotating shaft 117, and a rubber grinding roller 118 is fixedly installed on the outer wall of the rotating shaft 117, and multiple groups of clamping blocks 119 are fixedly installed at both ends of the outer wall of the rubber grinding roller 118, and the multiple groups of clamping blocks 119 at both ends are arranged in a circular array, and are located at the same horizontal position. The two groups of clamping blocks 119 are both connected with the same rubber breaking rib 120, a baffle plate 121 is fixedly installed on one side of the sealing working chassis 111, and a discharge pipe 122 is fixedly installed on the bottom of the sealing working chassis 111. The discharge pipe 122 is connected to the inside of the sealing working chassis 111. Specifically, rice is injected into the sealing working chassis 111 through the rice inlet slide 113, and the first servo motor 114 is started at the same time. The output shaft of the first servo motor 114 drives the rice shaking track 115 to shake rapidly, and the rice passes through the rice shaking track 115. The rice grains vibrate and collide with the elastic annular wall 130, thereby falling into the elastic annular wall 130, and at the same time the second servo motor 116 is started, and the output shaft of the second servo motor 116 drives the rotating shaft 117 to rotate, thereby rotating the rubber grinding roller 118, so that the rubber breaking ribs 120 on the rubber grinding roller 118 continuously collide with the rice grains, thereby the rice grains reach the inner wall of the elastic annular wall 130, and the rice grains are broken into pieces by the dual action of the elastic annular wall 130 and the rubber breaking ribs 120, so that most of the skin is separated from the rice grains.

[0029] Furthermore, a limiting column 131 is fixedly installed on one side of the elastic annular wall 130, and the other side of the elastic annular wall 130 is fixedly connected to the inner wall of the sealed working chassis 111. The inner wall of the sealed working chassis 111 is provided with an arc-shaped slideway 132, and the limiting column 131 is slidably connected to the inner wall of the arc-shaped slideway 132 and penetrates the arc-shaped slideway 132. A first fixed shaft 133 is fixedly installed on the outer wall of the sealed working chassis 111, and an arc frame 134 is rotatably connected to the outer wall of the first fixed shaft 133. The inner walls of the two sides of the bottom of the arc frame 134 are fixedly installed with the same rotating shaft 135. The sealed working chassis 111 is provided with an arc-shaped slideway 132. The outer wall of the elastic annular wall 130 is rotatably connected with a cylinder 136, and the output end of the cylinder 136 is rotatably connected with the rotating shaft 135. A channel is formed between the side of the elastic annular wall 130 away from the limiting column 131 and the blocking plate 121. Specifically, by starting the cylinder 136, the output shaft of the cylinder 136 pushes the rotating shaft 135, so that the arc frame 134 is deflected, thereby driving the limiting column 131 to slide in the arc slide 132, so that one end of the elastic annular wall 130 fixedly connected with the limiting column 131 expands or contracts, so as to achieve the effect of changing the distance between the rubber grinding roller 118 and the inner wall of the elastic annular wall 130.

[0030] Furthermore, the impurity removal device 200 includes a bottom tank body 210, the bottom of the sealed working case 111 is fixedly connected to the top of the bottom tank body 210, a shell outlet groove 211 is provided on one side of the bottom of the bottom tank body 210, a first blast hole 212 is provided on one side of the top of the bottom tank body 210, and a second blast hole 213 is provided on the other side of the bottom of the bottom tank body 210. The first blast hole 212 and the second blast hole 213 are both externally connected to a blower. A feed pipe 214 is rotatably connected to the inner wall at the center of the top of the bottom tank body 210, and the feed pipe 214 is connected to the discharge pipe 122. A limiting triangle plate 215 is fixedly installed on the inner wall of the top of the bottom tank body 210, and the middle part of the limiting triangle plate 215 is rotatably connected to the bottom of the feed pipe 214, and the feed pipe 214 passes through The limiting triangle plate 215 is passed through, and a third servo motor 218 is fixedly installed on the outer wall of the bottom of the bottom tank body 210. A rotating rod 219 is rotatably connected to the inner wall of the bottom of the bottom tank body 210. The output shaft of the third servo motor 218 is fixedly connected to the rotating rod 219. A rotating plate 216 is fixedly installed on the top of the rotating rod 219. A plurality of groups of arc-shaped grinding plates 217 are fixedly installed on the top of the rotating plate 216. The plurality of groups of arc-shaped grinding plates 217 are arranged in a circular array, and grinding layers are provided on the outer walls on both sides. An arc-shaped discharge channel is formed between two adjacent groups of arc-shaped grinding plates 217. The tops of the plurality of groups of arc-shaped grinding plates 217 are rotatably connected to the bottom of the limiting triangle plate 215. A rice outlet hole 220 is provided on the side of the bottom of the bottom tank body 210 away from the shell outlet groove 211. After most of the rice skin is separated from the rice grains by the action of the elastic annular wall 130 and the rubber breaking ribs 120 in the sealing working case 111, the separated rice skin and rice mixture enters the discharge pipe 122 through the channel formed between the elastic annular wall 130 and the blocking plate 121, and then enters the feed pipe 214 through the discharge pipe 122, and is introduced into the rotating plate 216 in the bottom tank body 210. At the same time, the third servo motor 218 is started, and the output shaft of the third servo motor 218 drives the rotating rod 219 to rotate, so that the rotating plate 216 rotates, thereby rotating the rice skin and the rice on the rotating plate 216. Under the action of centrifugal force, the rice skin, the rice with part of the skin, and the rice through the rotating plate 216 are rotated. The rice is discharged to the outside of the multiple groups of arc-shaped grinding plates 217 through the arc-shaped discharge channel formed between two adjacent groups of arc-shaped grinding plates 217. At this time, the rice with part of the skin is separated from the rice by the grinding layer on the arc-shaped grinding plate 217, thereby achieving the effect of completely separating the skin from the rice. At the same time, air is blown into the bottom tank body 210 through the first air hole 212 and the second air hole 213. The wind force blown into the first air hole 212 and the second air hole 213 can just make the rice skin suspend but cannot blow the rice. At this time, the rice skin can be discharged to the outside of the device through the shelling groove 211 after air selection, and the rice is discharged to the outside of the device through the rice outlet hole 220, thereby achieving the separation of the rice skin from the rice.

[0031] The use process of the present invention is as follows: a person skilled in the art injects rice into the sealed working machine box 111 through the rice feeding slide 113, and at the same time starts the first servo motor 114, the output shaft of the first servo motor 114 drives the rice shaking track 115 to shake rapidly, and the rice collides with the elastic annular wall 130 through the vibration of the rice shaking track 115, so as to fall into the elastic annular wall 130, and at the same time starts the second servo motor 116, the output shaft of the second servo motor 116 drives the rotating shaft 117 to rotate, so as to rotate the rubber grinding roller 118, so that the rubber breaking ribs 120 on the rubber grinding roller 118 continuously collide with the rice, so that the rice reaches the inner wall of the elastic annular wall 130, and the rice epidermis is broken by the dual action of the elastic annular wall 130 and the rubber breaking ribs 120, so that most of the epidermis is separated from the rice;

[0032] Since the husks are separated from the rice grains by the elastic annular wall 130 and the rubber breaking ribs 120, when the distance between the rubber grinding roller 118 and the inner wall of the elastic annular wall 130 is too large, the husks and the rice grains cannot be separated in time due to insufficient crushing force. When the distance between the rubber grinding roller 118 and the inner wall of the elastic annular wall 130 is too small, the crushing force generated is too large, thereby crushing the rice grains, increasing the broken rice rate and affecting the rice husking quality. At this time, it is only necessary to start the cylinder 136, and the output shaft of the cylinder 136 pushes the rotating shaft 135, so that the arc frame 134 is deflected, thereby driving the limiting column 131 to slide in the arc slide 132, so that one end of the elastic annular wall 130 fixedly connected to the limiting column 131 expands or contracts, so as to achieve the effect of changing the distance between the rubber grinding roller 118 and the inner wall of the elastic annular wall 130;

[0033] After most of the rice skin is separated from the rice by the action of the elastic annular wall 130 and the rubber breaking edge strip 120 in the sealing working box 111, the separated rice skin and rice mixture enters the discharge pipe 122 through the channel formed between the elastic annular wall 130 and the blocking plate 121, and then enters the feed pipe 214 from the discharge pipe 122, and is introduced to the rotating plate 216 in the bottom tank body 210, and the third servo motor 218 is started at the same time, and the output shaft of the third servo motor 218 drives the rotating rod 219 rotates, causing the rotating plate 216 to rotate, thereby causing the rice skin and rice grains on the rotating plate 216 to rotate. Under the action of centrifugal force, the rice skin and rice grains with a portion of the skin and rice grains are discharged to the outside of the plurality of arc-shaped grinding plates 217 through the arc-shaped discharge channel formed between two adjacent arc-shaped grinding plates 217. At this time, the rice grains with a portion of the skin are separated from the rice grains by the grinding layer on the arc-shaped grinding plates 217, thereby achieving the effect of completely separating the skin and rice grains.

[0034] At the same time, air is blown into the bottom tank body 210 through the first air hole 212 and the second air hole 213. The wind force blown into the first air hole 212 and the second air hole 213 can just suspend the rice skin without blowing the rice. At this time, the rice skin can be discharged to the outside of the device through the shelling groove 211 after air selection, and the rice is discharged to the outside of the device through the rice outlet hole 220, thereby realizing the separation of the rice skin and the rice.

[0035] The above is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A rice husking machine for removing hulls and reducing broken rice, comprising a hulling device (100) and an impurity removal device (200), wherein the hulling device (100) is located on the top of the impurity removal device (200) and is connected to the impurity removal device (200), characterized in that: The shelling device (100) comprises an elastic annular wall (130); and further comprises a shelling assembly (110) connected to the elastic annular wall (130); The shell grinding assembly (110) comprises a sealed working case (111), a rice inlet (112) is provided at the top of the sealed working case (111), a rice inlet slide (113) is fixedly mounted at the top of the sealed working case (111), a bottom channel opening of the rice inlet slide (113) is in communication with the rice inlet (112), a first servo motor (114) is fixedly mounted at the top of one side of the sealed working case (111), two inner walls at the top of the sealed working case (111) are rotatably connected to a same rice shaking track (115), the top of the rice shaking track (115) is in communication with the rice inlet (112), an output shaft of the first servo motor (114) is fixedly connected to the top of the rice shaking track (115), and a second servo motor (116) is fixedly mounted at the middle of one side of the sealed working case (111). The inner walls on both sides of the middle part of the sealed working case (111) are rotatably connected to a same rotating shaft (117); the output shaft of the second servo motor (116) is fixedly connected to the rotating shaft (117); a rubber grinding roller (118) is fixedly installed on the outer wall of the rotating shaft (117); a plurality of groups of clamping blocks (119) are fixedly installed at both ends of the outer wall of the rubber grinding roller (118); the plurality of groups of clamping blocks (119) located at both ends are arranged in a circular array; the two groups of clamping blocks (119) located at the same horizontal position are clamped with a same rubber breaking edge strip (120); a blocking plate (121) is fixedly installed on one side of the sealed working case (111); a discharge pipe (122) is fixedly installed on the bottom of the sealed working case (111); the discharge pipe (122) is communicated with the inside of the sealed working case (111); A limiting column (131) is fixedly mounted on one side of the elastic annular wall (130), and the other side of the elastic annular wall (130) is fixedly connected to the inner wall of the sealed working case (111). The inner wall of the sealed working case (111) is provided with an arc-shaped slideway (132). The limiting column (131) is slidably connected to the inner wall of the arc-shaped slideway (132) and penetrates the arc-shaped slideway (132). The outer wall of the sealed working case (111) is fixedly mounted with a first fixed shaft (131). 33), the outer wall of the first fixed shaft (133) is rotatably connected to an arc frame (134), the inner walls on both sides of the bottom of the arc frame (134) are fixedly mounted with the same rotating shaft (135), the outer wall of the sealed working chassis (111) is rotatably connected to a cylinder (136), the output end of the cylinder (136) is rotatably connected to the rotating shaft (135), and a channel is formed between the side of the elastic annular wall (130) away from the limiting column (131) and the blocking plate (121).

2. A rice husker for removing husks and reducing broken rice according to claim 1, characterized in that: The impurity removal device (200) comprises a bottom tank body (210), the bottom of the sealed working case (111) is fixedly connected to the top of the bottom tank body (210), a shell outlet groove (211) is provided on one side of the bottom of the bottom tank body (210), a first air blast hole (212) is provided on one side of the top of the bottom tank body (210), and a second air blast hole (213) is provided on the other side of the bottom of the bottom tank body (210), the first air blast hole (212) and the second air blast hole (213) are both externally connected to a blower, a feed pipe (214) is rotatably connected to the inner wall at the center of the top of the bottom tank body (210), the feed pipe (214) is connected to the discharge pipe (122), a limiting triangle plate (215) is fixedly installed on the inner wall of the top of the bottom tank body (210), the middle part of the limiting triangle plate (215) is rotatably connected to the bottom of the feed pipe (214), and the feed pipe (214) is connected to the discharge pipe (122). 14) penetrates the limiting triangle plate (215), a third servo motor (218) is fixedly installed on the outer wall of the bottom of the bottom tank body (210), a rotating rod (219) is rotatably connected to the inner wall of the bottom of the bottom tank body (210), an output shaft of the third servo motor (218) is fixedly connected to the rotating rod (219), a rotating plate (216) is fixedly installed on the top of the rotating rod (219), a plurality of groups of arc-shaped grinding plates (217) are fixedly installed on the top of the rotating plate (216), the plurality of groups of arc-shaped grinding plates (217) are arranged in a circular array, and grinding layers are provided on the outer walls on both sides, an arc-shaped discharge channel is formed between two adjacent groups of arc-shaped grinding plates (217), the tops of the plurality of groups of arc-shaped grinding plates (217) are rotatably connected to the bottom of the limiting triangle plate (215), and a rice outlet hole (220) is provided on the side of the bottom of the bottom tank body (210) away from the shell outlet groove (211).

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